Special Properties, SMB-005 MC `A`, `B` and `C` are vertices on the cube below. What is the best description of `DeltaABC`? isosceles equilateral scalene right-angled Show Answers Only `D` Show Worked Solution `AB != AC != BC` `angleBCA = 90^@` `:. DeltaABC\ text(is right-angled)` `=>D`